Paper-can-capping machine



Aug. 114, 1923.

J. W. HOLT PAPER CAN CAPPING MACHINE 2 Sheets-Sheet 1 Filed March 29 1922 mam Au M, 1923.

.J. w. ou-

PAPER CAN CAPPING MACHINE Filed March 29, 1922 2 Sheets-Sheet 2 awoewl oz F lllllllll II 33911 W Giro-M404 raaeea Au 14, 1923.

- na ransraras ar i V .zrosn'rn w. Bonner BR O LYN, NEW YORK, Assienoittro on on rernn COMPANY;

' or NEW'YORK, I\T. Y., A conronerron on NEW YORK.

rar'nacelrzr-oarrme MACHINE.

lyn, New 'York,-have. invented new and useful Improvements in Paper-Can-Gapping llfachines, of which the following is a specification. I v 1.

My invention relates to machinery for the making of paper cans and. the like and has for its principal object, the provisionof mechanism for applying the c-aps or heads to the can bodies. More particularly the ob"- jects of my invention are the provision of means for propelling the can bodies between guides, keeping. them moving continu ously and at a substantially'uniform rate, and applying the caps to the bodies during their passage between said guides;-the provision of means associated with said guides to distort the can bodies and caps while the capsare being applied, in substantially the same-manner-thatbodies and caps are distorted when the application of the caps is made by hand; the provision of means for automatically-feeding the can bodies and caps to the mechanism, and discharging thecans with the caps applied; theprovision of means for applying adhesive material to one or both ends of the can bodies prior to the engagement o-fthecaps with the can bodies;

the provision of means for-pressing the caps homeafter they have been applied to the can bodies; the provision of means for adjusting the several parts of the mechanism to accommodate different diameters and lengths of cans; the provision of means for preventing more than one cap from being applied on the end of a can; and such other objects as are disclosed in the course of the followingdescription.

My invention thus consists in the constructions, combinations and arrangements of parts herein described and claimed and illustrated in the accompanying drawings.

In these drawings, which illustrate a preferred embodiment of the invention, and in which similar reference characters designate corresponding parts in all views,

embodying the invention; 7 v l igj. 2 is a vertical section takenapproximatelyon the line 2-2 of Fig. 1,'l0oking in the direction of the arrows, showing the i the can bodiesnear their'ends.

conveying or propelling mechanism;

source of power.

7 of the meansfor Figure 1 is "a front elevation of'a machine Application filed March 29, 1922. Serial No. 547,714.

3 is a vertical partial section taken approximately on the line of Fig. 1,

looking in the direction or" the arrows, showing the guiding mechanism;

Fig. 4 is a horizontal section through the guides taken approximately on the line '-4.4

of Fig. 3; and,

Fig. 5 is a for delivering the caps into the path of the can bodies.

Referring to these frame 1, the shape of which is immaterial,

detail of the guides or chutes I H drawings, Iprovide a which serves as a support for the conveying and guiding mechanisms.

The conveying mechanism comprises preferably a pair of shafts 2, 3 suitably'mounted inbearing's 4 carried by the frame 1, the shaft 3 being preferably arrangedvertically above the shaft 2 and parallel therewith, and the shaft 2 being provided'with means to drive it, such as the driven pulley 5 and a suitable driving belt 6 connected with a Mounted upon the shafts 2, 3 arev operating pulleys 7 having one or more continuous conveyor belts 8 passing overthe pulleys and provided with hooks 9 adapted to engage the can bodies and con-: vey them through the guiding mechanism. In order that the conveyor belts, if more than one is used, may travel synchronously, means arepreferably provided to prevent slippage of the belts, such as the pins lO ar ranged to cooperate with the corresponding depressions 11 in the operating pulleys 7 which pins .10 may. if desired form a part 7 securing the hooks 9to the belts 8. p

.The guiding mechanism comprisespref erably two'pairs of main guides '12 and 13 together with a number of end guides associated with the main guides at appropriate points, and severalsupplementary guides.

These main guides are suitably supported on the frame in position parallel to the path of-travel of the conveyingbelts 8, .and

so spaced that the cam bodies propelled by the hooks 9 of the conveyor beltsi8* pass between the guides of each pair 12, 13.

In the drawings the cans, or more specifically the can bodies are designated A, the top caps BV and the bottom caps C; and the pairs of guides 12, 13 are spaced from each other approximately the length ofa can body A, so that the guides operate upon apart atthe top, and at the bottom, a dis.-

tancesuflicientto per'mitof the insertion" of a can bodythere'between, and the inter mediate portions of said gui'des'ha-ve in.-v

wardly projecting portions lforming restricted passage for the-can bod1es.- Thus;

as-the can bodies pass between these guides theyfiare .di'storted from their normal shape,

circular in section, to a shap'eapproximatelyelliptical in section; and after'thecanabodies have passed the restricted portion formed by the inward projectionsofthe guides 14, during which periodthe caps are: applied,

shape. having. circular section, whereupon they. are discharged from the: guides, falling upon suitable receiving apparatus su'ch as" the chute- 152' The canbodi'es are preferably introduced between the guides .12, 13 and: in- 'the path with respect 1 to the guides 12,2 13 1 and the conveying mechanism.

The yieldable guide.plate"l9 is preferably supported. on pivots 21 mounted upon the forward guide members 12,?1'3 ofeach pair, this plate being held, asbysprings 22, i

normally inthe position shownin Fig. 3,

thus supporting the can body A'until it'isz in place between-the guide andagainst the end plate-20, the plate 19. being capable of being moved'on its'lpivots by'the'can-body and-the conveyor hooks 9 out of the path of the can body as the can body is: drawn downwards, and being returned to the posi tion shown by the springs 22 after it is released by 'thepassageof a can body, so .as

to furnish" the same support to the sucoeeding can-body until it is in place for engage ment by theg-hoolrs of the conveyor mech anism.

. 'As the can body: is drawn downward'between the. pairsl of. guides 12, 13, its. axial position may be insured eby'the use of guides; 23,- 24, 25';'-'and inucase itisd esiredto apply one or both of the; caps: to the end: of the n? body A, as the cap G toform 'thGTbOttom of the-can, soiasrto secure it adhesively' thereto, mechanism. for applying. adhesive" to the end of the can body may beprovided",

. such. as theroller'26 to whichiadhe'sive' 'is' I supplied 'by means of a supplementalf roller" 27 partially immersediinsapotzof; adhesive.

mmaterial? 28. The roller: 26 isj 'preferably providedwith a conoave surfa'ce,:inprder that the adhesive may be'evenly distributed upon .the "end of the canbody, the oooperat-. ing roller 27 having 7 a. correspondmg con vex surface; V r r The-caps are-applied to the can bodies A after the can body hasfbeen distorted by 1 V the portions :14 .ofitheiguides 12, 13, the caps B, Cbeing introduced intothe path of the can bodies A by suitable-means sueh as the inclined guides orchutes 29." Thecapsn1ay be fed under-.the-infiuenceof gravity, slid ingdown-the chutes. 29 until they-project preferably he1d from' further advance by:v

the cans are allowed to resumetheirrnormal;

into the 'path'n offthe' can b odies A, being means such as. the restraining spring fingers 30, shown in Fig. 5,.which are yieldable to" permit of the caps ibefing' drawn" past them when they are engaged *byacan bodye. The'entire caps '13;

to :accommodateathe base of the cap;

l are not'susceptible of; being distorted to arr "elliptical shape ,f because of their flatbase' andfor this reason the main guides 12', 13 iar'e formedas'i shown int-Fig.- twith a recessed portionfi l. i 7

.As soonas the capshavebeen engaged V by-ythe can: bodies and d'rawn"forward,"theyf are acted upon by means such =as' the fingers": 5 31, located in recessesAO'of the guides 12,{'

13, .and inormally held in-the position shown? in" vfull lines in .Eigu 3 by= means sueh -"as' the. springs 32," the: fingers being mounted uponwpivots 33; These" means eXertthrough the fingers" a retardin pressureupon the edges of the caps" as'they are-drawn through by 'thefpassage of' the can bodies; thus: tending to work the edges-*of the caps around the can bodies and;.ensure-the pass-i V I ing' of the entire edgeof'thelcapl 'over the end' of the can body. As thecans ar deawn;

through, the fingers take the position "-shown I in. dot and'f'dash lines in Fig. 3, after theipassage ofa can, under theinfl uence of r the springs, resume the full line position-to" engagejthe succeeding can -andcaps. i

' After the caps have I been 4 introduced int'o" the' path of thejcan bodies A- by Hienger thefchute 29, as the bodies are dra wnffure" ther b'etweenthe'guides 12, 13, the caps-areforced firmly into place bytlie en'cl'gu-ide- I plates 24-, 25, the" cans resuming their. cylin drical shapeas the cap'sjareappliedsandthey pass from= the portions 14 of l 'theiriiain 1 guides; y In ord'erfthat one machine m y be useful ient way of accomplishing this, 1* have for applying 'caps tocansmfdifi erent diame ters and lengths, the guides are-preferably v made relatively-iadjustable? Asia conven 'g shownthe frame as ernbodyingj a iflat plat'e provided' w-ith' anumber of slots-35r- Bolts 36: are slldab'ly arranged in these slots"; and

engage the several end'gpides- 2O; 2e; f24;25j which may be-form'ed withifian ges' 317* at right angles, to the main portion of the guides, so. that when these. flanges are clamped against the framel by the bolts 36, the end guides are heldin position at right angles, to the flat surface, and by varying the. positions of the bolts in the slots the end guides may be: Spaced to accommodate cans of different lengths.

end guides throughbolts 88 engaging similar slots 39 in the end guides, and their posi tions may be similarly varied t accommodate cans of different diameters. If desired, the belts 8 carrying the hooks 9 may be changed for belts having larger or smaller hooks, and the pulleys 7 may be changed for different sizes to vary the path of the cans.

belt 16 which advances the can to its position between the guides 12, 18. As shown in.

Fig. 2, while the hoo'ks'are passing around the, pulleys 7 there isa very material space between the hooks, which permits of the insertion of a can body between the guides 12,

13 without interference from the hooks.

The belts 8 are driven continuously, and consequently the hooks-engage the can body A and draw it downthrou'gh the guides 12, 13, adhesive being applied by the roll 26 if desired. As the can body engages the projecting portion 14 of the guides 12, 18, the

section of the can body is transformed from substantially circular to substantially elliptical, so that at the time the can bodyengages the caps B, C held in position for it by the restraining fingers- 30, it has a substantially elliptical shape, and advancing inline withsits major axis the entranceato' the cap is made by the'acute'end of the ellipse,

so that the greater portion of the end of the can is inserted into the cap before there "is any frictional resistance from the edge of the cap. As the can body with the cap partially on is carried forward, the fingers 31 engage the edges of -the cap, and hold the parts of the cap that have already'been applied to the can body closely in place, so as to make the entrance of the last'edge of the can body into the cap 'an easy matter. As the can bodies with the-caps applied pass on further, the end-guides 2 1, 25 pressthe caps completely home upon the can bodies,

The main guides 12, 13- arethen similarly supported by th which then drop fromthe guides and the conveying mechanism into a suitable con tainer, for instance a chute 15 which delivers the finished cans where they are required.

Having now described my invention, 1 claim and desire to secure by Letters Patent: of the United States: V

prising guides adapted to-distort the cans to approximatelyelliptical section during passage therebetween, means for conveying the cans betweensaid guides, and means for applying the-caps to the cans while distorted. 2. A machine for ,capping paper cans comprisingguides adapted to -distort the l. A machine for capping paper cans com- 1 cans to approximately elliptical section during passage therebetween, meansfo'r conveying the cans between said guides, and

means for introducing the-caps" into the path of the ca'nsduring passage between said guides.

3. A ,machine for ifcappingi paper cans comprising guides adapted to distort the cans to approximately elliptical section durh passage therebetween, means for con-' veying the. cans between said guides, means for introducing the caps into the path of the cans during passage between said guides, and members associated with sa1d guides for. exerting end pressure upon the capped cans to-press the caps home.

4. A, machine. for capping paper jeans comprising-guides adapted to distort the cans to' approximately elliptical section dur- "ing passage therebetween, means for conveying the cans between said guides, means for introducing the caps into the path of the r 2 cans during passagebetween said guides, andmeans 0" 06I2t13lVB'0I1 the sides of the caps during application to the cans for distorting the edge of the cap to correspond with the shape of the can. i 5. A machine for capplng paper cans comprising guides adapted to distort the cansto approximately elliptioalsection during pasj sage therebetween means for conveying the cans between said guides, means for introducing the caps into the pathtotthe cans duringspassage between said guides, and. means to restrain the caps until preceding.

caps have been applied. 6. A machine for capping paper cans comprising approximately parallel guides, means for delivering paper cans between said 12 guides, meansffor engaging. and conveying said cans along betweenrsaid guides, said guides having a. contracted portion adapted todistort the cans ,to approximately ellipti; cal shape, and means for applying the caps to the cans while distorted. r

7. A machine for-cappingpaper cans com prising approximately parallel guidesJneans for'de'livering the'can's'between said guides, astop to-hold a can longitudinally in posi: tion between said guides, means for engagnally inpositioii between said guides; means for'engaging and conveying said cans along ing' and conveyin said" cans along between saidguidesgsaicl' guides havin a oontracted portion adapted to 1 distortthe oans ito -approxiina'tely'elliptical shape; and? means for:

applying the caps torted. t-

8. A machine for cap'ping papercans com prising I approximately par allel guides; mechanism including acontinu'ous; moving belt for advancing the' cans to position between said gnides; a stop to hold a qcan longitudi+ between said guides, s'aid guides having a contracted" portionadapted-i t i di tmt the; cans to" ap ro imatelye'lliptieal 'shap'e; and m ans fbr applying the paps to the?v cans While distorted-E, I a r '9'? Al-rnjachine tor capping-paper cans com rising ap roximately parallel guide's, means: forj delivering paper cans between-said? guides, means "for temporarily" supporting the cansto; approximately"ellipticah shape; I 11and nreansf ir appliing-the'eaps to thecansvv said" guides; a; yieldable' spring-pressed plate for temporarilysupporting-' said cans in p; 1 siti'on betwefen said g111d6- means for en said .can sin position; between said guides; means forfengaging' and I conveying said-cans along between said guides; said guide's hair ing} a contracted portion adapted to' distort while distorteds I r '10. machine for capping paper cans: 1 comprising .approximatel y :parallel guides;

means fer delivering paper cans" between .7 gaging andconveying 'said cans past? said 1 yiel'dableplate an'd along between" said uides; said guides having a eontracte'd por- ,tion'i adapted to" distortthe" cans tovapproxi;

mate-1y elliptical shape; and means for ap the cans While distorted;

12. A machine for capp ng paper-r cans:

comprisinguid s adaptedl to distort the ans-to a prexim atel e'llipt'ical'sectioir due comprising guides adaptedi to distort the V caf-ns to' approxim'a-tely elliptieal {section dur my passagfe' tlierebetween; means for conveyin'g' assage "therethrough; driven endless belts asseciated= with; s'aidfguides; means for: j causin said? belts to n'riove in: unison, hooks" carried byj said? beltsand Had aptedi to i'engagef the convey them between said guid eseain'dtmeaiisi for a plying the caps to the cans While distortedf -13; A machi e: f -lcapp g-p cans to the cans" hile" dis- 7 ing: the cans between said} guides, means for applying adhesive to at least one end" of; p the i cans and means for applying-the caps' to the cans :While distorted.

14c. A machine for capping 'paper comprisingguides ,fadapted to distort thecans'to approximately elliptical section dun-g ing 'pass'age' th'erebetweenQmeans for'ifconi- "veying the cansbet-Weensard'gu desyand 1n r 7 chnedl chutes for lntroducmg 'th'e capsa into i cans during passage between the path otithe said guides;

' 15; A" machinevffor capping p'aperj cans 7 comprising guides adapted to distort the cans itoapproximately elliptical section din ling. passagertherehetween, nieansifonconvey ing the cans; between said guides';ci in'cline'di chutes for introducing the caps into the path;

0f. the: cans "adoring-passage: between said guides ,1 andmeans to, preventi further ."IIIOVQ-a r? Iment'of the caps until engaged by theicans;

116. A" machinefor ca'pping paper; cans comprising. guides adapted to distort the cans 'to approximately ellipticalisection V dun-': I

ingt-passage therebetween means. fonconveyf 1 in'gthe. can'sa-between said guides, inclined;

chutes :for introducing the caps; into the path;

.'of the cans during passage; hetiveenisaidi 1 -gui'de's,rmeansi to preventfurther"movement of thecaps'untilwengagedi-hy thes'oans and end. plates associate'dywitlis saidu guidesl to apply a pressure to" the caps when; i en a ed:

and drawn forward bylthecans.

17 machine for capping paper cans compr-is-lng' guides. adapted to distort the '166 cans to approximately {elliptical section durng passage 'therebetween, means tori con-1 .Veying thecansbetween-said guides; inclined chutes for introducing the caps into :the path of the cans during passage between 7 said." guides, end platesassociated with said guides to applypressure tothe caps'when" engaged andrdrawn forward byxthe cans, and niechas- V nism for shapingv the'caps as they are forced;

into place' bfi saidendplates; 181 A fmachine for, capping paper cans i comprising-guides adapted ,to distort the cans to a-pproximately elliptical; section dun ing: passage ,thereloetween :-rne'ans::tor con.--V V veyingthexcans hetweenisaid guides; in

clined. chute s for introducing the caps" into thepath ofxthe cans during passage-between said guides end plates associated Withsaid: guides-to apply :PI'GSSHI'BEtQ the? caps when-- engaged" and drawn-forward the cans,

and spring pre'ssed fingers arranged toicomi press the caps toaconform tokthe.shapemfforcedintoiplacezby saidl V the cans asthey are end-plates. I

19; Aam'achi'ne for; capping: paper cans comprising guides adapteds jtos distort the cans to approximately ellipticahsectioni durl-- ing passage therebetwefem. means; forv con-f:

veyingithe cans between said guides, means;

for applying the caps to the cans while distorted, and means for adjustingthe guides to accommodate cans of different diameters.

20. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for conveying the cans between said guides, means for applying the caps to the cans while distorted, and means for adjusting the guides to accommodate cans of different lengths,

21. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for con veying the cans between said guides, means for applying the caps to the cans while distorted, and means for adjusting" the guides to accommodate cans of difiere'nt diameters and lengths.

22. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for conveying the cans between said guides, and means for applying the caps to the cans while distorted, said guides having portions adapted to act on said cans near but not at the ends of the cans to eifect distortion, and recessed portions at the sides of the ends of the cans to avoid distortion of the heads of the caps.

23. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for conveying the cans between said guides, means for introducing the caps into the path of the cans during passagebetween said guides, fingers pivotally mounted on said guides and normally held yielding across the line of movement of the cans, said fingers being mounted to be displaced into line with the guides by the advancing can.

-3'comprising guides adapted to distort the cans to approximately elliptical section dur- 1 ing passage therebetween, means for conveying the cans between said guides, a concave, roller for applyingadhesiveto at least one end of the cans, and means for applying the caps to the cans while distorted.

26. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for conveying the cans between said guides in a direction at right angles to their axes, and means for applying the caps to the cans while distorted.

27. A machine for capping paper cans comprising guides adapted to distort the cans to approximately elliptical section during passage therebetween, means for conveying the cans between said guides in a direction at right angles to their axes and in line with the major axis of the ellipse, and means for applying the caps to the cans while distorted.

28. A machine for capping paper cans comprising means for distorting the cans to approximately elliptical section, and means operating upon the exterior of the caps for similarly distorting their edges and angularly applying the caps.

In testimony whereof I have signed my name to this specification,

JOSEPH W. HOLT. 

